package com.blu.util;

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;

public class MD5Utils {
	
	public static String code(String str) {
		try {
			MessageDigest md = MessageDigest.getInstance("MD5");
			md.update(str.getBytes());
			byte[] byteDigest = md.digest();
			int i;
			StringBuffer buf = new StringBuffer("");
			for (int offset = 0; offset < byteDigest.length; offset++) {
				i = byteDigest[offset];
				if (i < 0) {
					i+=256;
				}else if (i < 16) {
					buf.append("0");
				}
				buf.append(Integer.toHexString(i));
			}
			//32位加密
			return buf.toString();
			//16位加密
			//return buf.toString().substring(8,24);
		} catch (NoSuchAlgorithmException e) {
			e.printStackTrace();
			return null;
		}
	}
	
	public static void main(String[] args) {
		System.out.println(code("111111"));
	}
	
}
